optional 5x , 10x or 100x MS4 or E 5.5 LED with illuminant in the luminous color (12V-19V) cold white - warm white - blue - red - green MS4 Round Heat LED bulbs Voltage: 12-19V Emitting color: white warm white red blue green Version: - MS4 Dimensions: 12mm /D-knife 6mm E5.5 Cob LED bulbs Voltage: 12-19V Emitting color - white warm white blue red green Socket - E5.5 dimensions approx. 14mm / D-knife 5.2mm Attention, the gallery photos shown above are for illustration only, these do not always reflect the actual scope of delivery. Legal notice.